I have one simple html with following code:
我有一个简单的html与以下代码：
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="English">
<head>
<link href="../Styles/design.css" rel="stylesheet" type="text/css" />
<title>Image</title>
<style type="text/css">
@page
{
margin: 0;
padding: 0;
}
</style>
</head>
<body style="margin: 0; padding: 0; oeb-column-number: 1;">
<div style="width: 100%; height: 100%; margin: 0; padding: 0; text-align: center;"><img alt="main" id="mainImage" src="../images/Image.jpg" style="height: 100%; max-width: 100%; max-height: 100%; padding: 0; margin: 0;" /></div>
</body>
</html>
In a folder I have Image.jpg file
在一个文件夹中，我有Image.jpg文件
Is that possible to add a css rule using Objective-C and change the img tag width and height? please help me.
是否可以使用Objective-C添加css规则并更改img标签的宽度和高度？请帮帮我。
I tried this code but it not working for me.
我试过这段代码，但它不适合我。
NSString *setImageRule = [NSString stringWithFormat:@"addCSSRule('img', 'max-width: %fpx; height: %fpx;')", self.webView.frame.size.width*0.75,self.webView.frame.size.height*0.75];
[webView stringByEvaluatingJavaScriptFromString:setImageRule];
1 个解决方案
#1
1
if you want to resize the UIImage,you can simply access the folder where the image is stored and resize it. Use this code for example :
如果要调整UIImage的大小，可以只访问存储图像的文件夹并调整其大小。使用此代码示例：
+ (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize {
//UIGraphicsBeginImageContext(newSize);
UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0);
[image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
#1
1
if you want to resize the UIImage,you can simply access the folder where the image is stored and resize it. Use this code for example :
如果要调整UIImage的大小，可以只访问存储图像的文件夹并调整其大小。使用此代码示例：
+ (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize {
//UIGraphicsBeginImageContext(newSize);
UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0);
[image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}